First, kids and adults, the rules are the same, so there is no difference there.
What you are asking about goes beyond just the rules: It comes down to intent.
Whether an adult, or kid, there could be an erroneous claim; and if it is really just that, then the TD should just fix it assuming it is caught in time. It is just a mistake. Other types of ...
As you said, Alireza Firouzja lost on time while he was trying to restore a piece he dropped. He appealed, but the appeal was denied.
It was denied for several reasons.
First, he appealed about Magnus uttering one frustrating word earlier in the game. That was denied because had he wanted to appeal that, he had to do it right then and there, but he did ...
What you are really looking for is a pairing program which will perform team round-robin pairing, allow you to enter results and display the results online.
There are two obvious candidates, one expensive and deluxe, and one cheap (free on Linux) which requires a bit more work on your part.
The expensive option is Swiss Manager. This does everything you ...
But most players are much smarter with how they do it by using other ways than you suggest.
Two GMs could agree to play a tame opening that is known to be drawish then settle for a draw after 20 moves or whatever the current rule limit is.
Personally I think they should have to play at least 40 moves if not the whole game until a draw is the ...
Did you already see lichess.org? This website has great tournament functionality. E.g. you can start a swiss tournament and add the participants by making them part of a team. Hence there will be no outsiders present.
Hope this helps :)